Predicted to enable transmembrane transporter activity. Acts upstream of or within acrosome assembly; sperm mitochondrion organization; and spermatid nucleus differentiation. Predicted to be located in membrane. Predicted to be integral component of membrane. Is expressed in several structures, including brain; genitourinary system; heart; liver; and lung. Orthologous to human MFSD14A (major facilitator superfamily domain containing 14A). [provided by Alliance of Genome Resources, Apr 2022]